Alcatel OT871a phone

Alcatel OT871a phone

Alcatel OT871a phone is too smart for the AT&T voicemail system. The phone automatically enters a "dash" after 3 digits are entered because it thinks you are entering a phone number. The AT&T voicemail system cannot accommodate a "dash" and wants all digits. Is the only solution to have no password?By the way, there is no method to enter "no password".